svn commit: r1717360 - in /pivot/trunk/demos/src/org/apache/pivot/demos/decorator: ScaleDecoratorDemo.java scale_window.bxml

[rw...@apache.org]

Author: rwhitcomb
Date: Tue Dec  1 00:28:32 2015
New Revision: 1717360

URL: http://svn.apache.org/viewvc?rev=1717360&view=rev
Log:
Add a demo program to illustrate how to use ScaleDecorator for zooming
in and out of an image.

Added:
    pivot/trunk/demos/src/org/apache/pivot/demos/decorator/ScaleDecoratorDemo.java
    pivot/trunk/demos/src/org/apache/pivot/demos/decorator/scale_window.bxml

Added: pivot/trunk/demos/src/org/apache/pivot/demos/decorator/ScaleDecoratorDemo.java
URL: http://svn.apache.org/viewvc/pivot/trunk/demos/src/org/apache/pivot/demos/decorator/ScaleDecoratorDemo.java?rev=1717360&view=auto
==============================================================================
--- pivot/trunk/demos/src/org/apache/pivot/demos/decorator/ScaleDecoratorDemo.java (added)
+++ pivot/trunk/demos/src/org/apache/pivot/demos/decorator/ScaleDecoratorDemo.java Tue Dec  1 00:28:32 2015
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.pivot.demos.decorator;
+
+import org.apache.pivot.beans.BXML;
+import org.apache.pivot.beans.BXMLSerializer;
+import org.apache.pivot.collections.Map;
+import org.apache.pivot.wtk.Application;
+import org.apache.pivot.wtk.Component;
+import org.apache.pivot.wtk.ComponentMouseWheelListener;
+import org.apache.pivot.wtk.DesktopApplicationContext;
+import org.apache.pivot.wtk.Display;
+import org.apache.pivot.wtk.ImageView;
+import org.apache.pivot.wtk.Mouse;
+import org.apache.pivot.wtk.Window;
+import org.apache.pivot.wtk.effects.ScaleDecorator;
+
+public class ScaleDecoratorDemo extends Application.Adapter {
+    private Window scaleWindow;
+    @BXML private ImageView imageView;
+    @BXML private ScaleDecorator scaleDecorator;
+
+    @Override
+    public void startup(Display display, Map<String, String> properties) throws Exception {
+        BXMLSerializer bxmlSerializer = new BXMLSerializer();
+        scaleWindow = (Window) bxmlSerializer.readObject(DecoratorDemo.class,
+            "scale_window.bxml");
+        bxmlSerializer.bind(this);
+
+        imageView.getComponentMouseWheelListeners().add(new ComponentMouseWheelListener() {
+            @Override
+            public boolean mouseWheel(Component component, Mouse.ScrollType scrollType, int scrollAmount,
+                                      int wheelRotation, int x, int y) {
+                // Note: both scale values are the same
+                float currentScale = scaleDecorator.getScaleX();
+                if (wheelRotation < 0) {
+                    // UP == zoom in, make scale larger
+                    scaleDecorator.setScale(currentScale * 2.0f);
+                } else {
+                    // DOWN == zoom out, make scale smaller
+                    scaleDecorator.setScale(currentScale / 2.0f);
+                }
+                component.repaint();
+                return true;
+            }
+        });
+
+        scaleWindow.open(display);
+    }
+
+    @Override
+    public boolean shutdown(boolean optional) {
+        if (scaleWindow != null) {
+            scaleWindow.close();
+        }
+
+        return false;
+    }
+
+    public static void main(String[] args) {
+        DesktopApplicationContext.main(ScaleDecoratorDemo.class, args);
+    }
+
+}

Added: pivot/trunk/demos/src/org/apache/pivot/demos/decorator/scale_window.bxml
URL: http://svn.apache.org/viewvc/pivot/trunk/demos/src/org/apache/pivot/demos/decorator/scale_window.bxml?rev=1717360&view=auto
==============================================================================
--- pivot/trunk/demos/src/org/apache/pivot/demos/decorator/scale_window.bxml (added)
+++ pivot/trunk/demos/src/org/apache/pivot/demos/decorator/scale_window.bxml Tue Dec  1 00:28:32 2015
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License,
+Version 2.0 (the "License"); you may not use this file except in
+compliance with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+
+<Window title="Scale Window" x="20" y="20"
+    xmlns:bxml="http://pivot.apache.org/bxml"
+    xmlns:effects="org.apache.pivot.wtk.effects"
+    xmlns="org.apache.pivot.wtk">
+
+    <BoxPane orientation="vertical" styles="{horizontalAlignment:'center'}">
+        <Label text="Use the mouse wheel over the image to zoom in and out."/>
+        <Border>
+            <ImageView image="@IMG_0767_2.jpg" bxml:id="imageView">
+                <decorators>
+                    <effects:ScaleDecorator bxml:id="scaleDecorator"/>
+                </decorators>
+            </ImageView>
+        </Border>
+    </BoxPane>
+</Window>
+